XL.
One, two,
Buckle my shoe;
Three, four,
Shut the door;
Five, six,
Pick up sticks;
Seven, eight,
Lay them straight;
Nine, ten,
A good fat hen;
Eleven, twelve,
Who will delve?
Thirteen, fourteen,
Maids a courting;
Fifteen, sixteen,
Maids a kissing;
Seventeen, eighteen,
Maids a waiting;
Nineteen, twenty,
My stomach's empty.